@doragirl, look into therapy that is recommended by autism-competent resources. Some of them might still use ABA to deal with specific skills that are lacking, but they will still embrace his underlying autism as a valid type of neurology. And help him to navigate it.
https://autlanders.blogspot.com/2019/07/finding-support-resources-in-usa.html
https://autlanders.blogspot.com/2019/07/finding-support-resources-in-usa.html